File: public/js/tinymce/src/core/src/main/js/selection/SetSelectionContent.js

/**
 * SetSelectionContent.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.selection.SetSelectionContent',
  [
  ],
  function () {
    var setContent = function (editor, content, args) {
      var rng = editor.selection.getRng(), caretNode, doc = editor.getDoc(), frag, temp;

      args = args || { format: 'html' };
      args.set = true;
      args.selection = true;
      args.content = content;

      // Dispatch before set content event
      if (!args.no_events) {
        args = editor.fire('BeforeSetContent', args);
        if (args.isDefaultPrevented()) {
          editor.fire('SetContent', args);
          return;
        }
      }

      content = args.content;

      if (rng.insertNode) {
        // Make caret marker since insertNode places the caret in the beginning of text after insert
        content += '<span id="__caret">_</span>';

        // Delete and insert new node
        if (rng.startContainer == doc && rng.endContainer == doc) {
          // WebKit will fail if the body is empty since the range is then invalid and it can't insert contents
          doc.body.innerHTML = content;
        } else {
          rng.deleteContents();

          if (doc.body.childNodes.length === 0) {
            doc.body.innerHTML = content;
          } else {
            // createContextualFragment doesn't exists in IE 9 DOMRanges
            if (rng.createContextualFragment) {
              rng.insertNode(rng.createContextualFragment(content));
            } else {
              // Fake createContextualFragment call in IE 9
              frag = doc.createDocumentFragment();
              temp = doc.createElement('div');

              frag.appendChild(temp);
              temp.outerHTML = content;

              rng.insertNode(frag);
            }
          }
        }

        // Move to caret marker
        caretNode = editor.dom.get('__caret');

        // Make sure we wrap it compleatly, Opera fails with a simple select call
        rng = doc.createRange();
        rng.setStartBefore(caretNode);
        rng.setEndBefore(caretNode);
        editor.selection.setRng(rng);

        // Remove the caret position
        editor.dom.remove('__caret');

        try {
          editor.selection.setRng(rng);
        } catch (ex) {
          // Might fail on Opera for some odd reason
        }
      } else {
        if (rng.item) {
          // Delete content and get caret text selection
          doc.execCommand('Delete', false, null);
          rng = editor.getRng();
        }

        // Explorer removes spaces from the beginning of pasted contents
        if (/^\s+/.test(content)) {
          rng.pasteHTML('<span id="__mce_tmp">_</span>' + content);
          editor.dom.remove('__mce_tmp');
        } else {
          rng.pasteHTML(content);
        }
      }

      // Dispatch set content event
      if (!args.no_events) {
        editor.fire('SetContent', args);
      }
    };

    return {
      setContent: setContent
    };
  }
);